Schaffer, R., & Earle, B. A. (1999). International Business Law and its environment (4.). West Educational Publishing.
Čikaški stil citiranjaSchaffer, Richard, i Beverley Agusti Earle. International Business Law and Its Environment. 4. Ohio: West Educational Publishing, 1999.
MLA način citiranjaSchaffer, Richard, i Beverley Agusti Earle. International Business Law and Its Environment. 4. West Educational Publishing, 1999.
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